arranging-coins
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9
arranging-coins/sol.go
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9
arranging-coins/sol.go
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package main
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import "math"
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// Time: O(1) (assuming computer has float64 sqrt instruction)
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// Space: O(1)
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func arrangeCoins(n int) int {
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return int(math.Sqrt(float64(2*n)+0.25) - 0.5)
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}
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